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Use PutBucketPolicy with an AWS SDK

Mode fokus
Use PutBucketPolicy with an AWS SDK - Amazon Simple Storage Service
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The following code example shows how to use PutBucketPolicy.

Java
SDK for Java 2.x
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

Apply a bucket policy to a directory bucket.

import org.slf4j.Logger; import org.slf4j.LoggerFactory; import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.s3.S3Client; import software.amazon.awssdk.services.s3.model.PutBucketPolicyRequest; import software.amazon.awssdk.services.s3.model.S3Exception; import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucket; import static com.example.s3.util.S3DirectoryBucketUtils.createS3Client; import static com.example.s3.util.S3DirectoryBucketUtils.deleteDirectoryBucket; import static com.example.s3.util.S3DirectoryBucketUtils.getAwsAccountId; /** * Sets the following bucket policy for the specified S3 directory bucket. *<pre> * { * "Version": "2012-10-17", * "Statement": [ * { * "Sid": "AdminPolicy", * "Effect": "Allow", * "Principal": { * "AWS": "arn:aws:iam::<ACCOUNT_ID>:root" * }, * "Action": "s3express:*", * "Resource": "arn:aws:s3express:us-west-2:<ACCOUNT_ID>:bucket/<DIR_BUCKET_NAME> * } * ] * } * </pre> * This policy grants all S3 directory bucket actions to identities in the same account as the bucket. * * @param s3Client The S3 client used to interact with S3 * @param bucketName The name of the directory bucket * @param policyText The policy text to be applied */ public static void putDirectoryBucketPolicy(S3Client s3Client, String bucketName, String policyText) { logger.info("Setting policy on bucket: {}", bucketName); logger.info("Policy: {}", policyText); try { PutBucketPolicyRequest policyReq = PutBucketPolicyRequest.builder() .bucket(bucketName) .policy(policyText) .build(); s3Client.putBucketPolicy(policyReq); logger.info("Bucket policy set successfully!"); } catch (S3Exception e) { logger.error("Failed to set bucket policy: {} - Error code: {}", e.awsErrorDetails().errorMessage(), e.awsErrorDetails().errorCode(), e); throw e; } }
  • For API details, see PutBucketPolicy in AWS SDK for Java 2.x API Reference.

SDK for Java 2.x
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

Apply a bucket policy to a directory bucket.

import org.slf4j.Logger; import org.slf4j.LoggerFactory; import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.s3.S3Client; import software.amazon.awssdk.services.s3.model.PutBucketPolicyRequest; import software.amazon.awssdk.services.s3.model.S3Exception; import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucket; import static com.example.s3.util.S3DirectoryBucketUtils.createS3Client; import static com.example.s3.util.S3DirectoryBucketUtils.deleteDirectoryBucket; import static com.example.s3.util.S3DirectoryBucketUtils.getAwsAccountId; /** * Sets the following bucket policy for the specified S3 directory bucket. *<pre> * { * "Version": "2012-10-17", * "Statement": [ * { * "Sid": "AdminPolicy", * "Effect": "Allow", * "Principal": { * "AWS": "arn:aws:iam::<ACCOUNT_ID>:root" * }, * "Action": "s3express:*", * "Resource": "arn:aws:s3express:us-west-2:<ACCOUNT_ID>:bucket/<DIR_BUCKET_NAME> * } * ] * } * </pre> * This policy grants all S3 directory bucket actions to identities in the same account as the bucket. * * @param s3Client The S3 client used to interact with S3 * @param bucketName The name of the directory bucket * @param policyText The policy text to be applied */ public static void putDirectoryBucketPolicy(S3Client s3Client, String bucketName, String policyText) { logger.info("Setting policy on bucket: {}", bucketName); logger.info("Policy: {}", policyText); try { PutBucketPolicyRequest policyReq = PutBucketPolicyRequest.builder() .bucket(bucketName) .policy(policyText) .build(); s3Client.putBucketPolicy(policyReq); logger.info("Bucket policy set successfully!"); } catch (S3Exception e) { logger.error("Failed to set bucket policy: {} - Error code: {}", e.awsErrorDetails().errorMessage(), e.awsErrorDetails().errorCode(), e); throw e; } }
  • For API details, see PutBucketPolicy in AWS SDK for Java 2.x API Reference.

For a complete list of AWS SDK developer guides and code examples, see Developing with Amazon S3 using the AWS SDKs. This topic also includes information about getting started and details about previous SDK versions.

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